CN104057657A - Composite structure roller - Google Patents
Composite structure roller Download PDFInfo
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- CN104057657A CN104057657A CN201410281092.5A CN201410281092A CN104057657A CN 104057657 A CN104057657 A CN 104057657A CN 201410281092 A CN201410281092 A CN 201410281092A CN 104057657 A CN104057657 A CN 104057657A
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Abstract
The invention discloses a composite structure roller, which is characterized by comprising a substrate and an anti-nodulation composite coating cladding on the substrate surface; the anti-nodulation composite coating comprises at least three sub-coatings, an alloy layer coating on the substrate surface, a first metal ceramic layer coating on the alloy layer surface and a second metal ceramic layer coating on the surface of the first metal ceramic layer. The invention composite structure roller provided by the invention has an anti-nodulation composite coating, and the performances of wear resistance, high temperature resistance, oxidation resistance, thermal shock resistance and nodulation resistance, and greatly improves the quality of the steel plate manufactured from the composite structure roller.
Description
Technical field
The present invention relates to a kind of composite structure roller.
Background technology
In recent years, along with the fast development of China's economic, we are being faced with by highly energy-consuming, expensive, low value-added product, towards transition and the upgrading of low power consuming, low cost, high value added product.Wherein follow growth in the living standard, the automobile demand amount of China significantly increases, and high-and middle-ranking car is the vertical production base in Huajian in succession, also increasing to the demand of high-end Automobile Plate, makes high-end cold-rolled steel sheet become the main raw material(s) of manufacturing Automobile Plate.This production equipment to steel plate is had higher requirement.
Furnace roller is as the core component of steel plate continuous annealing furnace, in high temperature, at a high speed, in the harsh working environment of reducing atmosphere, can the work that run well will directly determine the Performance and quality of steel plate.Furnace roller is High Rotation Speed at work, drives steel plate fast moving in stove, and this requires furnace roller to have good coefficient of friction, and suitable roughness, for steel band provides sufficient frictional force.Meanwhile, because steel band contacts with the continuous of roll body, also require roll body to there is good abrasion resistance properties.In steel band process, keep quite high temperature (maximum temperature can reach more than 1000 DEG C), this requires furnace roller to possess good high temperature resistance, oxidation resistant performance.Furnace roller, owing to exposing for a long time in stove, although there is gas shield, occurs that the possibility of oxidation is still larger, and after furnace roller surface is oxidized, surface roughness also can change thereupon, very unfavorable to producing high-quality steel plate.Owing to will being filled with appropriate reducibility gas in work, this can make iron oxide or the manganese oxide etc. of steel strip surface be reduced into the metal such as iron, manganese, and iron, manganese and furnace roller material (mostly being heat-resistance stainless steel) have very strong compatibility, intersolubility, easily be attached on and on roll surface, form buildup, be difficult to manual removal, must, by instrument as file, take time and effort.And along with furnace roller operating temperature raises, dross and wearing and tearing also strengthen thereupon, the slip between furnace roller and steel plate also can promote dross to generate.When dross can make steel plate slippage cross roll surface, can on steel plate, leave pit, pull, the defect such as cut, thereby affect plate quality.
Summary of the invention
The object of the invention is in order to overcome deficiency of the prior art, a kind of resistive connection knurl composite coating is provided.
For realizing above object, the present invention is achieved through the following technical solutions:
Resistive connection knurl composite coating, is characterized in that, comprises at least three layers of coating, be respectively be coated on matrix surface alloy-layer, be coated on first cermet coating on alloy-layer surface and be coated on second cermet coating on the first cermet coating surface; Described alloy-layer is made up of 50%～65% Co, 18%～28% Cr, 6%～12% Al, 0.2%～2% Y, 6%～12% Ta according to weight percent content; Described the first cermet coating according to weight percent content by 10%～15% Y
2o
3, 48%～60% Co, 14%～26% Cr, 4%～10% Al, 0.2%～2% Y, 4%～10% Ta composition; Described the second cermet coating according to weight percent content by 15%～20% CrB
2, 10%～15% Y
2o
3, 35%～50% Co, 10%～18% Cr, 4%～8% Al, 0.2%～2% Y, 4%～8% Ta composition.
Preferably, described matrix is annealing furnace roller.
Another object of the present invention is to provide a kind of spraying method of resistive connection knurl composite coating.
For achieving the above object, the present invention is achieved through the following technical solutions:
The spraying method of resistive connection knurl composite coating, is characterized in that, comprises the following steps:
A. adopt spraying equipment, the alloy powder being made up of 50%～65% Co, 18%～28% Cr, 6%～12% Al, 0.2%～2% Y, 6%～12% Ta according to weight percent content is sprayed into matrix surface, forms the alloy-layer of 1～20 μ m;
B. adopt spraying equipment, by according to weight percent content by 10%～15% Y
2o
3, 48%～60% Co, 14%～26% Cr, 4%～10% Al, 0.2%～2% Y, 4%～10% Ta composition the first metal ceramic powder be sprayed into alloy-layer surface, form the first cermet coating of 10～30 μ m;
C. adopt spraying equipment, by according to weight percent content by 15%～20% CrB
2, 10%～15% Y
2o
3, 35%～50% Co, 10%～18% Cr, 4%～8% Al, 0.2%～2% Y, 4%～8% Ta composition the second metal ceramic powder be sprayed into the first cermet coating surface, form the second cermet coating of 10～30 μ m.
Preferably, described matrix is annealing furnace roller.
Another object of the present invention is to provide a kind of composite structure roller of resistive connection knurl.
For achieving the above object, the present invention is achieved through the following technical solutions:
Composite structure roller, is characterized in that, comprises matrix and is coated on the resistive connection knurl composite coating of matrix surface; Resistive connection knurl composite coating comprises at least three straton coatings, be respectively be coated on matrix surface alloy-layer, be coated on first cermet coating on alloy-layer surface and be coated on second cermet coating on the first cermet coating surface; Described alloy-layer is made up of 50%～65% Co, 18%～28% Cr, 6%～12% Al, 0.2%～2% Y, 6%～12% Ta according to weight percent content; Described the first cermet coating according to weight percent content by 10%～15% Y
2o
3, 48%～60% Co, 14%～26% Cr, 4%～10% Al, 0.2%～2% Y, 4%～10% Ta composition; Described the second cermet coating according to weight percent content by 15%～20% CrB
2, 10%～15% Y
2o
3, 35%～50% Co, 10%～18% Cr, 4%～8% Al, 0.2%～2% Y, 4%～8% Ta composition.
Preferably, described matrix is annealing furnace roller.
Composite structure roller provided by the invention, has resistive connection knurl composite coating, has the performances such as wear-resistant, high temperature resistance, anti-oxidant, anti-thermal shock, resistive connection knurl, greatly improves the quality that adopts the steel plate that this kind of composite structure roller manufacture.On the other hand, the service life of composite structure roller, more traditional furnace roller also extended to some extent, and time expand is not less than 1/3 of traditional furnace roller life-span, thereby has reduced the use cost of composite structure roller.
Resistive connection knurl composite coating provided by the invention comprises three layers of coating, be respectively be coated on matrix surface alloy-layer, be coated on first cermet coating on alloy-layer surface and be coated on second cermet coating on cermet coating surface.Adopt directly coated matrix surface of ceramic material, greatly improved the adhesion of coating and furnace roller, effectively avoid coating shedding, extend the service life of composite structure roller.
Prime coat using alloy-layer as coated matrix surface; because alloy-layer and matrix material match in the performances such as heat conduction, thermal expansion; make between coating and matrix, to there is good bond strength; guarantee that matrix (as furnace roller) uses rear coating also without coming off for a long time; extend the service life of composite structure roller, reduced the frequency of maintenance of composite structure roller.
Using the second cermet coating as surface layer, in alloy, add ceramic material, retain the excellent properties such as Alloy Anti high temperature, anti-oxidant, anti-thermal shock, wear-resistant, suitable roughness, there is the anti-noclulation that ceramic material plays simultaneously.Especially, adding of B, Y element, makes coating surface form the oxide-film of complete densification, further improves the high temperature resistance of coating, anti-oxidant, abrasion resistance properties, has extended the service life of composite structure roller, has reduced the frequency of maintenance of composite structure roller.The more important thing is, adding of ceramic material, reduce the compatibility of coating to metal, delay or stop the generation of dross phenomenon, make coating there is the excellent properties of resistive connection knurl, avoid on steel plate, leaving pit while causing steel plate slippage to cross roll surface because of composite structure roller surface cord, pull, cut, greatly improve the quality that adopts the steel plate that this composite structure roller manufactures.
One excessive layer is set between the second cermet coating and alloy-layer, the first cermet coating.In the first cermet coating, ceramic material content is lower than ceramic material content in the second cermet coating.This excessive layer has the performance of alloy-layer and the second metal level concurrently, guarantee the adhesive strength of the second cermet coating and alloy-layer, prevent that the second cermet coating from coming off, and extended the service life of composite structure roller, reduce the frequency of maintenance of composite structure roller, saved human cost.
The spraying method of resistive connection knurl composite coating provided by the invention, technique is simple.Can complete spraying on traditional furnace roller surface, without changing furnace roller, reduce the processing and manufacturing cost of steel mill.Sprayed on material is Powdered, makes coating have good thickness evenness.
Brief description of the drawings
Fig. 1 is the composite structure roller front view in the present invention;
Fig. 2 is the A-A cutaway view of Fig. 1.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described in detail:
As illustrated in fig. 1 and 2, be composite structure roller 1.Composite structure roller 1 comprises the resistive connection knurl composite coating 12 of matrix 11 and coated matrix surface.Matrix 11 is traditional annealing furnace roller.Resistive connection knurl composite coating 12 comprises three straton coatings, be respectively be coated on matrix surface alloy-layer 121, be coated on first cermet coating 122 on alloy-layer 121 surfaces and be coated on second cermet coating 123 on the first cermet coating 122 surfaces.In each embodiment, the component weight percent content of the alloy-layer 121 of resistive connection knurl composite coating 12 is as shown in Table 1:
Table one
In each embodiment, the component weight percent content of the first cermet coating 122 of resistive connection knurl composite coating 12 is as shown in Table 2:
Table two
| Embodiment | Y 2O 3 | Co | Cr | Al | Y | Ta |
| 1 | 15％ | 52％ | 18.4％ | 8.6％ | 0.5％ | 5.5％ |
| 2 | 10％ | 52％ | 20％ | 9.3％ | 0.7％ | 8％ |
| 3 | 11％ | 49.5％ | 18％ | 10％ | 1.5％ | 10％ |
| 4 | 14％ | 56％ | 16％ | 6％ | 1％ | 7％ |
| 5 | 12％ | 60％ | 14％ | 4％ | 0.2％ | 9.8％ |
| 6 | 13％ | 48％ | 26％ | 7％ | 2％ | 4％ |
| 7 | 12.3％ | 50％ | 24％ | 8％ | 1.2％ | 4.5％ |
| 8 | 14.5％ | 51.5％ | 22％ | 5.5％ | 0.5％ | 6％ |
| 9 | 11.8％ | 57％ | 15％ | 8％ | 1.2％ | 7％ |
| 10 | 10.6％ | 56.5％ | 18％ | 5.6％ | 0.8％ | 8.5％ |
In each embodiment, the component weight percent content of the second cermet coating 122 of resistive connection knurl composite coating 12 is as shown in Table 3:
Table three
The spraying method of resistive connection knurl composite coating 12 is as follows:
A. adopt spraying equipment, alloy powder is sprayed into matrix surface, form the alloy-layer of 1～20 μ m; The weight percent content of the each component of alloy-layer as shown in Table 1.
B. adopt spraying equipment, the first metal ceramic powder is sprayed into alloy-layer surface, form the first cermet coating of 10～30 μ m; The weight percent content of the each component of the first cermet coating as shown in Table 2.
C. adopt spraying equipment, the second metal ceramic powder is sprayed into the first cermet coating surface, form the second cermet coating of 10～30 μ m; The weight percent content of the each component of the second cermet coating as shown in Table 3.Complete the spraying of the resistive connection knurl composite coating to matrix 11, make composite structure roller 1.
The technical parameter of the composite structure roller in each embodiment is as shown in Table 4:
Table four
Data acquisition in table four obtains with the following method:
1050 DEG C, 48 hours oxidation weight gains: heat-treatment furnace is put in the test block that four sides is coated with to resistive connection knurl composite coating, be heated at 1050 DEG C and be incubated 48 hours, take out cooling and weigh, the weightening finish of unit of account chronomere area coating, for weighing the antioxygenic property of coating.The unit interval weightening finish of unit are coating is fewer, and antioxygenic property is stronger, otherwise more weak.
800 DEG C of high-temperature wearable loss rates: use high temperature friction and wear testing machine antagonism dross composite coating to carry out wear-resistant test, 800 DEG C of test temperatures, rotating speed 100rpm, test pressure 15N, test stroke 200m, the internally coated wear volume of unit of account pressure unit stroke after weighing, for weighing the high temperature wear resistant performance of coating.The internally coated wear volume of unit pressure unit's stroke is fewer, and high temperature wear resistant performance is higher, otherwise poorer.
Room temperature to 1200 DEG C thermal shock resistance properties: will be coated with the test piece of resistive connection knurl composite coating and be heated to 1200 DEG C of insulation 20min, and observe disbonding situation after taking-up Water Quenching.Repeat-heating shrend, until disbonding area exceedes 2% of the coating gross area.By making disbonding area exceed the heating shrend number of times of the coating gross area 2%, weigh the thermal shock resistance properties of coating.Heating shrend number of times is more, and thermal shock resistance properties is better, otherwise poorer.
Bond strength: at mating plate end face, face area is S by resistive connection knurl coating spraying.By the bonding formation tensile sample of binding agent.Adopt omnipotent mechanical test machine above-mentioned mating plate to be carried out to tension test, the maximum load F while recording coating shedding.The mean value F ' that gets five tension test maximum loads, anchoring strength of coating is F '/S.
Anti-nodulation ability: whether under 1000 DEG C of environment of high temperature, place ferromanganese powder at resistive connection knurl coating surface, be incubated after 480 hours, observing coating surface has buildup to produce.Weigh the anti-nodulation ability of coating according to the quantity of buildup, size.Anti-nodulation ability is divided into excellent, good, general, poor from high to low.Buildup quantity is zero for excellent.
As shown in Table 4, be coated with the composite structure roller of resistive connection knurl composite coating,, without the furnace roller of the coated furnace roller of coating and direct coating ceramic material, anti-nodulation ability improves greatly.Meanwhile, the furnace roller of more direct coating ceramic material, antioxygenic property, high-temperature wearable loss rate, thermal shock resistance properties, also improves greatly with the bond strength of matrix.
Composite structure roller prepared by embodiment 1-10 exceedes 4 years half the service life in the continuous strip annealing furnace of cold rolling mill, the furnace roller of being longer than the coating of nonreactive dross composite coating is no more than the service life of 3 years, and result of use is good, without dross, the steel plate qualification rate of production is high.
Embodiment in the present invention, only for the present invention will be described, does not form the restriction to claim scope, those skilled in that art can expect other be equal in fact substitute, all in protection domain of the present invention.
Claims (2)
1. composite structure roller, is characterized in that, comprises matrix and is coated on the resistive connection knurl composite coating of matrix surface; Resistive connection knurl composite coating comprises at least three straton coatings, be respectively be coated on matrix surface alloy-layer, be coated on first cermet coating on alloy-layer surface and be coated on second cermet coating on the first cermet coating surface; Described alloy-layer is made up of 50%～65% Co, 18%～28% Cr, 6%～12% Al, 0.2%～2% Y, 6%～12% Ta according to weight percent content; Described the first cermet coating according to weight percent content by 10%～15% Y
2o
3, 48%～60% Co, 14%～26% Cr, 4%～10% Al, 0.2%～2% Y, 4%～10% Ta composition; Described the second cermet coating according to weight percent content by 15%～20% CrB
2, 10%～15% Y
2o
3, 35%～50% Co, 10%～18% Cr, 4%～8% Al, 0.2%～2% Y, 4%～8% Ta composition.
2. composite structure roller according to claim 1, is characterized in that, described matrix is annealing furnace roller.
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| CN201410281092.5A CN104057657B (en) | 2014-06-21 | 2014-06-21 | Composite structure roller |
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| CN201410281092.5A CN104057657B (en) | 2014-06-21 | 2014-06-21 | Composite structure roller |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106739269A (en) * | 2016-11-24 | 2017-05-31 | 苏州华意铭铄激光科技有限公司 | One kind protects anti-corrosion composite metal product |
| CN106739267A (en) * | 2016-11-24 | 2017-05-31 | 苏州华意铭铄激光科技有限公司 | A kind of high performance corrosion-proof composite metal product |
| CN110004372A (en) * | 2019-05-22 | 2019-07-12 | 马鞍山市恒泰重工机械有限公司 | A kind of high temperature resistant, anti-oxidant, wear-resisting metallurgy roller and preparation method thereof |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106515128A (en) * | 2016-11-24 | 2017-03-22 | 苏州华意铭铄激光科技有限公司 | High-temperature-resistant high-pressure-resistant anticorrosion composite metal product |
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| JPH0688197A (en) * | 1992-05-19 | 1994-03-29 | Mitsubishi Heavy Ind Ltd | Surface layer of dynamic and static vanes |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106739269A (en) * | 2016-11-24 | 2017-05-31 | 苏州华意铭铄激光科技有限公司 | One kind protects anti-corrosion composite metal product |
| CN106739267A (en) * | 2016-11-24 | 2017-05-31 | 苏州华意铭铄激光科技有限公司 | A kind of high performance corrosion-proof composite metal product |
| CN110004372A (en) * | 2019-05-22 | 2019-07-12 | 马鞍山市恒泰重工机械有限公司 | A kind of high temperature resistant, anti-oxidant, wear-resisting metallurgy roller and preparation method thereof |
| CN110004372B (en) * | 2019-05-22 | 2020-05-22 | 马鞍山市恒泰重工机械有限公司 | High-temperature-resistant, oxidation-resistant and wear-resistant metallurgical roller and preparation method thereof |
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